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DANVILLE, KY - OCTOBER 10: Centre College studetns (R-L) Tommy Munoz, Ben Boone and Alex Birmingham stand in for candidates Vice President Joe Biden, Republican vice presidential nominee Rep. Paul Ryan (R-WI) and moderator Martha Raddatz during lighting tests on stage at the college October 10, 2012 in Danville, Kentucky. Ryan and Biden will participate in the one and only vice presidential debate of the election tomorrow. (Photo by Chip Somodevilla/Getty Images)